1. Nucleotides as nucleophiles: Reactions of nucleotides with phosphoimidazolide activated guanosine

   • Anastassia Kanavarioti
   • Morgan T. Rosenbach
   • T. Brian Hurley

   OriginalPaper Pages: 199 - 217

2. Chemical evolution of the citric acid cycle: Sunlight photolysis of the amino acids glutamate and aspartate

   • Thomas G. Waddell
   • Tod J. Miller

   OriginalPaper Pages: 219 - 223

3. Possible prebiotic significance of polyamines in the condensation, protection, encapsulation, and biological properties of DNA

   • Isabel Baeza
   • Miguel Ibáñez
   • J. Oró

   OriginalPaper Pages: 225 - 242

4. Contribution of temperature gradient to aggregation of thermal heterocopolymers of amino acids in aqueous milieu

   • Eiichi Imai
   • Jun Shirasawa
   • Koichiro Matsuno

   OriginalPaper Pages: 243 - 249

5. New insights on the comma-less theory

   • Enrique Merino
   • Paulina Balbás
   • Francisco Bolivar

   OriginalPaper Pages: 251 - 254

6. The viking biology experiments: Epilogue and prologue

   • Harold P. Klein

   OriginalPaper Pages: 255 - 261

7. Book review

   • Arthur Weber

   BookReview Pages: 263 - 263